#define _CRT_SECURE_NO_WARNINGS 1

#include<stdio.h>

int fun(int y)
{
    return ((y % 4 == 0 && y % 100 != 0) || y % 400 == 0);
}
int main()
{
    int y = 0;
    int m = 0;
    int d = 0;
    int days[13] = { 0,31,28,31,30,31,30,31,31,30,31,30,31 };
    while (scanf("%d%d", &y, &m) != EOF)
    {
        int d = days[m];
        if (fun(y) == 1 && m == 2)
        {
            d++;
        }
        printf("%d\n", d);
    }
    return 0;
}
